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Finding the Fourth Proportional to 8,251.97, 11,387.49 and 4,715.18

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Solution

The fourth proportional to 8,251.97, 11,387.49 and 4,715.18 is: 6,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.97 : 11,387.49 = 4,715.18 : x
  2. Step 2: Convert to fraction form
    8,251.97/11,387.49 = 4,715.18/x
  3. Step 3: Cross multiply
    8,251.97x = 11,387.49 × 4,715.18
  4. Step 4: Simplify right side
    8,251.97x = 53,693,984.58
  5. Step 5: Solve for x
    x = 53,693,984.58/8,251.97
  6. Step 6: Final answer
    x = 6,506.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.